{"id":104317,"date":"2015-07-15T03:00:00","date_gmt":"2015-07-15T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=25e38ce9d77d55d603f879cf9d40ab64"},"modified":"2015-07-15T03:00:00","modified_gmt":"2015-07-15T00:00:00","slug":"construction-of-an-inexpensive-molecular-iodine-spectrometer-using-a-self-developed-pohl-wavemeteraround-670-nm-wavelength","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=104317","title":{"rendered":"Construction of an inexpensive molecular iodine spectrometer using a self-developed Pohl wavemeter\r\naround 670 nm wavelength"},"content":{"rendered":"<p>We describe the construction of an inexpensive iodine spectrometer with a homemade iodine vapour<br \/>\ncell and a self-developed wavemeter based on the Pohl interferometer, around the 670 nm wavelength.<br \/>\nThis can be easily realized in an undergraduate teaching laboratory to demonstrate the use of a<br \/>\ndiode laser interferometer using a Pohl interferometer and measurement of the wavelength using image<br \/>\nprocessing techniques. A visible alternative to the infrared diode lasers, the 670 nm diode laser<br \/>\nused here gives undergraduate students a chance to perform comprehensive though illustrative atomic<br \/>\nphysics experiments including the Zeeman effect, the Hanle effect, and the magneto-optic rotation<br \/>\neffect with a little tweaking in the present spectrometer. The advantage of the spectrometer is its<br \/>\nease of construction with readily available optics, electronics, evacuation and glass-blowing<br \/>\nfacilities, and easy analysis algorithm to evaluate the wavelength. The self-developed algorithm of<br \/>\nraster sca&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We describe the construction of an inexpensive iodine spectrometer with a homemade iodine vapour<br \/>\ncell and a self-developed wavemeter based on the Pohl interferometer, around the 670 nm wavelength.<br \/>\nThis can be easily realized in an undergraduate teach&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-104317","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/104317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=104317"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/104317\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=104317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=104317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=104317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}